From: Richard Biener <rguenther@suse.de>
Date: Mon, 22 Feb 2021 07:36:55 +0000 (+0100)
Subject: tree-optimization/99165 - fix ICE in store-merging w/ non-call EH
X-Git-Tag: upstream/12.2.0~9637
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8a8eee6bdb906788992622715bf97aff984ac989;p=platform%2Fupstream%2Fgcc.git

tree-optimization/99165 - fix ICE in store-merging w/ non-call EH

This adds a missing accumulation to ret.

2021-02-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/99165
	* gimple-ssa-store-merging.c (pass_store_merging::process_store):
	Accumulate changed to ret.

	* g++.dg/pr99165.C: New testcase.
---

diff --git a/gcc/gimple-ssa-store-merging.c b/gcc/gimple-ssa-store-merging.c
index b4c5e8e..213c155 100644
--- a/gcc/gimple-ssa-store-merging.c
+++ b/gcc/gimple-ssa-store-merging.c
@@ -5230,7 +5230,7 @@ pass_store_merging::process_store (gimple *stmt)
 	  if (idx >= (unsigned)param_max_store_chains_to_track
 	      || (n_stores + (*e)->m_store_info.length ()
 		  > (unsigned)param_max_stores_to_track))
-	    terminate_and_process_chain (*e);
+	    ret |= terminate_and_process_chain (*e);
 	  else
 	    {
 	      n_stores += (*e)->m_store_info.length ();
diff --git a/gcc/testsuite/g++.dg/pr99165.C b/gcc/testsuite/g++.dg/pr99165.C
new file mode 100644
index 0000000..70ffd03
--- /dev/null
+++ b/gcc/testsuite/g++.dg/pr99165.C
@@ -0,0 +1,7 @@
+// { dg-do compile }
+// { dg-options "-O2 -fnon-call-exceptions --param=max-stores-to-track=2" }
+
+struct A {
+  A() : i() {}
+  int i;
+} *ap2 = new A[3];